## Math 461 Midterm Exam 2 solutions, results, and grading information

• Course Information Sheet. The yellow handout distributed at the beginning of the semester. Refer to this page for the complete grading policies.
• Online Scores. Log in with your NetID and password to view all your scores in this class, and your current points total. Most of the notation is self-explanatory. An asterisk (*) indicates an excused score (see the Course Information Sheet for a detailed explanation of an "excused" score). A double dash (--) indicates an assignment that has not been turned in; this counts as 0 points.
• Discrepancies in score display: If you notice any errors in the score display, such as an incorrectly entered or missing hw score, let me know right away and show me the assignment in question. Errors must be reported within one week from the date the test/assignment has been returned.

### Exam 2 information

• Exam 2 Syllabus. The exam information/syllabus page posted before the exam.
• Exam 2 Solutions. Complete solutions, with score breakdown per subproblem, and detailed comments on incorrect approaches and common mistakes. Check here first before asking questions about the exam.
• Exam 2 statistics: The maximal score was 150, the median score 118, the average 114. Individual scores ranged from a perfect 150 to 48. For the score breakdown per problem see the above solutions.
• Percentage of course grade. This exam contributes approximately 1/6 to the course grade. The current maximal points total (based on two midterms and six hw assignments) is 420 points and represents about 45 percent of the points total at the end of the semester. For the complete grading policy, see the Course Information Sheet handed out the first week of class.
• Letter grade correspondence: For your information, here is an approximate letter grade correspondence, based on the current maximal total score of 420 points: a total score above 370/420 corresponds to an A grade (A-, A, A+); 310/420 - 370/420 is a B; 250/420 - 310/420 is a C; and 180/420 - 250/420 is a D.
• Grading appeals. In case of a simple accounting error (such as an incorrect addition of scores, or discrepancy between your score on the exam and the score on the computer grade report), let me know, and I'll likely take care of it on the spot. If you have a question/complaint about the grading itself, see me after the 10 am class, or during office hours. Most errors were not unique, and were graded uniformly; see the Exam Solutions for some common mistakes.
Deadline: The deadline for appeals on Exam 2 is Friday, April 3. (The exam will be returned Monday after the break.)